Sepulcher Sentinel vs Ruella

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Sepulcher Sentinel	Knight Revenant	Force	Defence	Epic	Defence 25% Place: All battles
Ruella	Sylvan Watchers	Spirit	Attack	Epic	Accuracy 40 Place: Dungeons

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Sepulcher Sentinel	60	6	16185	903	1321	98	15	50	45	0
Ruella	60	6	15855 -330	1376 +473	870 -451	112 +14	15	50	30 -15	0

Sepulcher Sentinel	Sword of Withering Formula: 3.3*DEF Attacks 1 enemy. Has a 40% chance of placing a 50% [Decrease ATK] debuff for 2 turns. Decrease ATK 50%	Sepulcher Shield Places a 60% [Increase DEF] buff and a [Block Debuffs] buff on all allies for 2 turns. Cooldown: 5 Block Debuffs Increase DEF 60%	Untouched By Death [P] Formula: -1*DMG_MUL Has a 25% chance of completely blocking incoming damage when an ally is attacked. Occurs once per turn. Will only block damage for the targeted ally if multiple allies are attacked at the same time. Cooldown: 1
Ruella	Harassment Volley Formula: 1.5ATK Formula: 0.05MAX_STAMINA Formula: -CHANGED_STAMINA_AMOUNT Attacks 1 enemy 3 times. Each critical hit has an 80% chance of stealing 5% of the target’s Turn Meter.	No Respite Formula: 2.3*ATK Attacks 1 enemy 3 times. Each hit has a 50% chance of placing a 60% [Decrease DEF] debuff, a 25% [Weaken] debuff and a 30% [Decrease SPD] debuff for 2 turns. Cooldown: 4 Weaken 25% Decrease SPD 30% Decrease DEF 60%	Timed Offensive Formula: 0.2*MAX_STAMINA Fills the Turn Meters of all allies by 20% and places a 30% [Increase C. RATE] buff on all allies for 2 turns. Cooldown: 6 Increase C. RATE 30%